MAX3814CHJ+T

The MAX3814CHJ+T is a DVI/HDMI TMDS FR-4 and cable equalizer/driver in 32 pin TQFP package. The MAX3814 TMDS EQ/driver IC compensates for FR-4 and cable losses up to the DVI/HDMI transmit connector and provides a fully compliant DVI/HDMI TMDS output. It is used in DVI/HDMI cable applications to extend reach and improve jitter margin of cable channels at the receive-side connector. The on-chip TMDS driver operates at a standard current level for implementing a typical DVI/HDMI non back terminated transmitter as well as a 50% higher current mode for using a 200 ohm back termination resistor (non matching) to achieve a 10dB return loss. Typical DVI/HDMI output drivers contribute to reflection problems between the connector and a typical high impedance (open) DVI/HDMI Tx output. The selectable output current (LEVEL pin) gives the option of partial back termination to mitigate the reflection problem effectively while keeping common-mode offset to a minimum.

• Supply voltage range is 3V to 3.6V
• Operating temperature range from 0°C to 70°C
• Equalizes FR-4 board microstrip and cable HF losses up to 15dB at 825MHz at 0.25Gbps to 1.65Gbps
• Compatible with HDMI 1.3
• Less than 0.2UIP-P residual jitter at 1.65Gbps for 0 to 15dB channel loss at 825MHz
• Input terminations is 50 ohm (each side to VCC) ±10%
• Output of driver is a fully DVI/HDMI TMDS compatible cable driver
• Output amplitude is 1.05VP-P differential
• Enable pin to select normal operation or power down mode

Remarques

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party